public void TwoProportionZTestConstructorTest() { // Example from http://stattrek.com/hypothesis-test/difference-in-proportions.aspx int sampleSize1 = 100; int sampleSize2 = 200; double sample1 = 0.38; double sample2 = 0.51; TwoProportionZTest target = new TwoProportionZTest( sample1, sampleSize1, sample2, sampleSize2, TwoSampleHypothesis.ValuesAreDifferent); Assert.AreEqual(-2.13, target.Statistic, 5e-3); Assert.AreEqual(0.034, target.PValue, 1e-3); Assert.IsTrue(target.Significant); }